20.O29 [Augereau Crossroads, HoutHulst Forest] January 3, 1918.
Covers area equivalent to squares O29, 30 and 36 on the corresponding WWI map sheet 20. Negative roll and photo number 9B 318. Annotations on recto: north arrow; "Augereau CrossRoads" labelled in white; Double dashed white lines. WWI Aerial Photograph Collection: Box 1, Envelope 102.